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Literature summary for 3.4.23.1 extracted from

  • Bohak, Z.
    Purification and characterization of chicken pepsinogen and chicken pepsin (1969), J. Biol. Chem., 244, 4638-4648.
    View publication on PubMed

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
35000
-
-
Sus scrofa
35000
-
gel filtration Gallus gallus

Organism

Organism UniProt Comment Textmining
Gallus gallus
-
-
-
Sus scrofa
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
side-chain modification glycoprotein Gallus gallus
side-chain modification glycoprotein Sus scrofa

Purification (Commentary)

Purification (Comment) Organism
-
Gallus gallus

Source Tissue

Source Tissue Comment Organism Textmining
forestomach
-
Gallus gallus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Gallus gallus
additional information
-
-
Sus scrofa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
acetyl-L-phenylalanyl-L-diiodotyrosine + H2O
-
Sus scrofa acetyl-L-phenylalanine + L-diiodotyrosine
-
?
acetyl-L-phenylalanyl-L-diiodotyrosine + H2O low activity Gallus gallus acetyl-L-phenylalanine + L-diiodotyrosine
-
?
Hemoglobin + H2O
-
Gallus gallus ?
-
?
Hemoglobin + H2O
-
Sus scrofa ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
2.2
-
-
Sus scrofa
2.8
-
-
Gallus gallus

pH Range

pH Minimum pH Maximum Comment Organism
1.5 4.5 pH 1.5: about 90% of maximum activity, pH 4.5: about 35% of maximum activity Gallus gallus
1.5 4.5 pH 1.5: about 90% of maximum activity, pH 4.5: about 35% of maximum activity Sus scrofa

pH Stability

pH Stability pH Stability Maximum Comment Organism
additional information
-
-
Gallus gallus
additional information
-
-
Sus scrofa
8
-
below Gallus gallus
8
-
below Sus scrofa